Guitar



FIG. 1 is a back view of a guitar showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a front perspective view thereof;

FIG. 8 is a back perspective view thereof;

FIG. 9 is an enlarged, partial view of the headstock, taken at line-9 in FIG. 7; and,

FIG. 10 is an enlarged, partial view thereof, taken at line-10 in FIG. 8. 

CLAIM The ornamental design for a guitar, as shown and described. 